This casual combination of a red crew-neck sweater and a crew-neck t-shirt is perfect if you need to go about your day with confidence in your look. Let's make a bit more effort with footwear and complement your look with a pair of black suede desert boots. This look is also great if you're in search of warm weather wear to get through a slow day. Sartorial inspiration like this will help you remain incredibly stylish as you navigate your 20s.